Concise hierarchy

(Kingdom) Chromista - (Phylum) Ochrophyta

Phylogeny

Paraphyletic/Ancestral (para)

Ref: L.K. Medlin, 2016: 120.

Original position

Bacillariophyta (Phylum) Engl. & Gilg (1919)		Ref: F.E. Round et al., 1990: table 2 (p. 125). [implicit]
Bacillariophyta (Division) Engl. & Gilg (1919)		Ref: F.E. Round et al., 1990: table 2 (p. 125).

Original entries

Biddulphiophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Chaetocerotophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Corethrophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Coscinodiscophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Cymatosirophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Lithodesmiophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Rhizosoleniophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).
Thalassiosirophycidae (Subclass) Round & R.M. Crawford (1990)		Ref: F.E. Round et al., 1990: table 2 (p. 125).

Current position

Diatomea ([unranked]) Kütz. (1844)

Ref: L.K. Medlin, 2016: table 2 (p. 115). [inferred]

Alternative positions

Bacillariophyta (Phylum) Engl. & Gilg (1919)	Ref: A.B. Doweld, 2001: LXXI.
Bacillariophyta (Division) Engl. & Gilg (1919)	Ref: F.E. Round et al., 1990: 125. [new taxon]
Coscinodiscophytina (Subphylum) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin & I. Kaczmarska, 2004: 266. [emended diagnosis] [implicit]
Coscinodiscophytina (Subdivision) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin & I. Kaczmarska, 2004: 266. [emended diagnosis]
Diatomeae (Subphylum) Caval.-Sm. (1995)	[indirect]
Heterokontophyta (Phylum) Moestrup (1992)	Ref: Species 2000, 2003

Historical positions

Coscinodiscophytina (Subdivision) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin, 2016: 120, 122, table 2 (p. 115), table 3 (p. 117), fig. 4.
Coscinodiscophytina (Subdivision) Medlin & Kaczmarska (2004)	Ref: L.K. Medlin & I. Kaczmarska, 2004: 266. [emended diagnosis]
Bacillariophyta (Phylum) Engl. & Gilg (1919)	Ref: A.B. Doweld, 2001: LXXI.
Eukaryota ([unranked]) Chatton, 1925	Ref: T. Koray, 2001: 12. [rough position]
Diatomea (Infraphylum) Caval.-Sm. (1993)	Ref: T. Cavalier-Smith, 1993b: table 2 (p. 961). [invalid/synonym] [implicit]
Bacillariophyta (Phylum) Engl. & Gilg (1919)	Ref: F.E. Round et al., 1990: xiv, 588.
Bacillariophyta (Division) Engl. & Gilg (1919)	Ref: F.E. Round et al., 1990: 125, 126, App. I (p. 651). [new taxon]

Number of Subtaxa

2024	Available in Systema Naturae 2000	14o;23f;50g;113s;18v; †2g;1s
1989-present	Systema Naturae 2000: 25 Mar 2016	[14o;23f]
2004	L.K. Medlin & I. Kaczmarska: 267	[13o]
1990	F.E. Round et al.: 127	[8sc;22o;40f]
1990	F.E. Round et al.	[8sc;20o;33f]